Sprinkler for narrow areas



Oct. 20, 1931. w. VAN E. THOMPSON SPRINKLER FOR NARROW AREAS Filed Dec.

M 5 ff. ml

N R O T T A '11.2.5 tratermyinvention;

` QGALIEO'RNIA I gation systems consist of underground 'piping to whichvsprinklers located fat the surface of the ground'arefconnectedfgTheentire area may be irrigatedby merely/operating a- 'valve whichcontrols the'vlsupply of water tof'theunderground piping,vr f It is anobject-"of this invention to provide a sprinkler .whichis 'adapted toirrigate a narrowelongltedarea. f l' It water issues Vfrorn as'prinklerin a "sheet, 15 the*v wind resistance 1 is very high @andthestreamwill be blownzconsid'erably `inthe di-` rectin of thewin; 'l

1': Itisan object'of my inventionito .provide a Y sprinkler of thecharactermentionedfin which @l0 the streainis disrupted .intoidropssothatfit" will have a lowk wind resistancei i VOther objects andad@antagesoltheinvention will be made evident hereinafter;Ql c

Referringtothev drawingsginli illus- Figa-11"- 's a verticalfseot theshowing the use of the invention.'

p Figf121is a similar ls'ecton'takenfat right anglesfto Fig. y1.. f -f Iy'-j Fig-"Lis a vertical section.throughdlpJ sprinkler, Y .v

f Fig: 5 isfayiewpartlyV-sectioneiil; v

' ing 28. y p

and at right angles tothe opening 28,.' fro1`n vone side of thebody 22.The end ofthe hole 29 whichfconnects to the exterior-of the body l22 isfilled with a plug 31. The upperfe'nd ot lbeing taken .atrightangles-ftoFig. '4. if Fig. Gis' a plan view oflFig.5.

'particularly Figs.. ltoa inclusive, 11 `is va yheader which is extendedsomewhat below the -surfa'ce'o fthe ground lf2. The 4header 1l is .whichvertical pipes 14: .are attached to fthe header. Atrtlie upper`endothepipesjlll are y'Referring `to thedrawingsin detail and providedwith T .ttingsi13,2-byg .meansiof' one 'side of the u and 2 andfallsubstantially .as-shown. ."It will D beseen that the' streanisfare'forrne'd ofrdrops'vf wALTEe'vAN Ehriioifirson, orfjliosAivGELEs,CALironnIA,'-fnssienoa rro'rrnoivrrsoiv MANUrAcTUmNe-QOMPANX,orLosANGnLEs, CALIFORNIA, yA conformaron 'or ati 'f V `Applies@milfmeafnepmber s.,A Y1926. lserial yNo.: 153,277i f of water and.Y do knotforni single sheet i which `would have ahigh wind resistance. Fig;Y `lis-a View taken across the' elongated thelength; of the elongated area 17.

ar'ea .17 whereas uFig. 2is a'viewA taken along i ,l 55V The 'detailsof. the sprinkler head are if l shown in -Figsijljto 6 inclusive. Asleeve 2O s is securedto the upper end of each pipe l. f

Each sleeve has internal threads 21'at theup;

per-end thereof into which a vbody Y22 isp' screwed... The-lower partofthe body 22'isV l provided in the from of a cylindrical projection 23which extends from the vmain portionL Y' y i ofthe Jbody22 inside thesleeve 20.V The cylindrical projection 23Yisiofsn1aller diam- 'jete-rthan the internal diameterof the sleeve so'that any annular waterkpassage providedil;therearounjd.- AY threaded cavity 25 .is formed inlthepcylindrical projectionv 23 and 4 inf'thejlower portionofrthe `mainpart of the v'-'body"22' yand screwed into'the lower .endof j the cavity25fisfaj valve intheforrn .of ascrew 26. i; Ducts27-connectthe lcavity257to the annular space around the cylindricalprojection 26gmay beadjusted in position to vary the` is slightlyy larger in diameter thanthe A open- The hole 29-'is drilled vhorizontally the body 22is providedin the form of a semi-y cylindrical boss 33. Formed in this boss 33 topersing slot 34 is formed on a'vertical plane at cal yas illustratedbest in Fig. 5, .anda bottom 4:horiz,ontal walldf Therdispersing slot 34connected to' thehole 29, near the left end w center of the'body 22 is a.dis` :persing slot "or `discharge mouth .34. The disright angles-tolthe hole 29, and it is'verzticallythereof. The bottom `wall 36 islocated in a plane above the lower ypart of the hole 29 andbelow theupper part thereof, preferably cen-V trally between the upper andlower.V limits 5 of the hole. The extreme left end of Ythe hole 29provides a disrupting pocket 38,7whereas the other part of the hole 29Aand the opening 28 form a passage. i The part of the-passage--A whichconnects to the slot 34 extends at sube stantially yright angles totheslot as shown. The `disrupting pocket 38 is on the opposite side of theslot 34from the passage and is in.. alignment with the horizontalportion whichVl connectsto the slot 34.u

y In the operation o f the invention the valve 26 is' adjusted so thatthe proper amount of water will pass through the body 2,2. .The waterpasses through the ducts '27, -theupper p part of the cavity 25,- andfinto thepassage v which consists of the opening 28and fthe'hole 29.Thehole 29'for1ns a sort of vestibule 1nV the water from solid form intobroken masses,

'375 or particles takes'place-in the vestiblef29,

These particles of. water are forced outward through the dispersing slot3,4 with considerable violence. The side walls'35 prevent the particlesof water from moving to the right orto the left of thesegwalls withrespect to Fig. l and fFig. 4,'but since the ends areopen the wateris'free to spread parallelto the directionof the walls 35. l The resultis that streams composed of particles of; water indicated at 18 in Figs.1 and 2is provided. This is .avery important feature of 'my in'- vention.since it enables anelongated area to be irrigated, usingfewersprinklers than' the ordinarysystem. In the ordinary systemA thesprinklers do not provide l'an elongated stream and therefore the areaof each sprinkler is limited so that fa number of-sprinklers havingsmall yirrigating ,areas must be placed sideby side if an elongatedstripis Vtol be irrigated. L j* Another feature of'thisV invention isthat the streams will not be blown to'an'y great` extent eventhoughthere is -a'strong wind. flhis isV because of the fact-'that the streamsg resistance'is Vvery low; Ihere-thestreamis in the form4 of a sheet thewindresi'stanceis "very high fand would.V be blown considerably tooone'side in thedirection of thelwind so that The directing Aof the waterinto sage .connecting `with said chamber, the crosssectional area ofvsaid `supply passage being thatliquid broken" up bysaid turbulence is-l Y gled changes inf direction. i

i 4. Inaturbulence sprinkler, the combinaarejbroken up into particles sothat the windV Etheelo'ngated area would not be irrigatedand so thatthewater would be blown onto other portions which should not be suppliedwith water. Y

. the dispersing slot'34 at substantially right angles is important tothe invention. f The dispersing pocket 38 Vassists greatly in disruptingthe stream lof. water into particles.

o .I claim as my invention: y 1. Ina turbulence sprinkler, the .combination of: walls forming a vestibulev chamber; walls formingvanon-constrictive' discharge y mouth leading from said chamber to the at'mosphere vat an angle with the longitudinal axis of said chamber fandwalls forming a supply passage connectingwith said'chamber,.thecross-'sectional areaof said supply passage being suiiiciently. lessthan that of said chamber to set up a turbulence in said chamber, andthe size of said ,mouth being 85 vsufficientlylarge that liquidibrokenup by said turbulence is `v`discharged-ithrough said mouth in the formof-drops,` said mouth being a rel ativelylong andnarrow slot.

2. In a turbulence sprinkler, the combination of walls formingavestibule chamber; walls Vforming ai non-constrictive discharge mouthleading from saidchamber to the atmosphere; andv walls forminga supplypassufliciently less than that of said chamber to setup a turbulenceinsaid chamber, and the size of saidV Vmouth being suficientlyr largedischarged throughsaid Vmouthin the form ofidrops, said mouth andsaidpassage being substantially parallel with each other;

3. In a turbulence sprinkler, the combination of :V wallsVformingaivestibulechamber; 1`05 walls :forming av non-constrictive`discharge mouth leading from said chamber to theatmosphere ;1 andv wallsforming a supply passage connecting with said chamber, thecrosssectionall area of saidfsupply passage being -12110 suiiicientlyless than that of 4said chamber to set up a turbulence in saidchamberfand the size of said mouth beingsuliiciently large that liquidbrokenup by said turbulence is discharged through said mouth in the formof drops, saidmouth and saidpassage being offset relative to eachotherso that liquid after entering and before leaving said chamber is causedto makeftwo substantially right anmouth leading from saidchamber to theatinosphere;` andywalls forming a supply fpasj 25 sage connectingwithsaid chamber, the Cross.-

secti'onalareaof said supplygpassage being sufficiently lessthan thatoffsaid chamber to lset up afturbulence' in said chamber, and

the size of saidmouth being sufficiently large i that liquid brokenA upby seid turbulences ber s caused to make two definite changes indirection,V i

In testimony whereof,V I`

day of December, 1926.

have hereunto n r f set my hand at Los Angeles, Calif.,` thisV 3rd f vWALTER VAN E; THOMPSON,

